Oil-fired space heater



FIG. 1 is a right side elevational view of an oil fired space heater, showing my new design.

FIG. 2 is a front elevational view thereof.

FIG. 3 is a left side elevational view thereof.

FIG. 4 is a rear elevational view thereof.

FIG. 5 is a top plan view thereof.

FIG. 6 is a bottom plan view thereof. 

The ornamental design for an oil-fired space heater, substantially as shown and described. 